EBCDIC platforms: David submitted patches for two bugs in the

MD5 digest port for EBCDIC machines:
a) the htdigest utility overwrote the old contents of the digest file
b) the Content-MD5 header value (ContentDigest directive) was wrong
when the returned file was not converted from EBCDIC, but was a
binary (e.g., image file) in the first place.

Submitted by: David McCreedy <mccreedy@us.ibm.com>
Reviewed by: Martin Kraemer


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@83043 13f79535-47bb-0310-9956-ffa450edef68